/*
* Unix SMB/CIFS implementation.
- * RPC Pipe client / server routines
- * Copyright (C) Gerald Carter 2002.
+ * Virtual Windows Registry Layer
+ * Copyright (C) Gerald Carter 2002-2005
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* Implementation of registry frontend view functions. */
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
+/**********************************************************************
+
+ Note that the REGSUB_CTR and REGVAL_CTR objects *must* be talloc()'d
+ since the methods use the object pointer as the talloc context for
+ internal private data.
+
+ There is no longer a regXXX_ctr_intit() and regXXX_ctr_destroy()
+ pair of functions. Simply TALLOC_ZERO_P() and TALLOC_FREE() the
+ object.
+
+ **********************************************************************/
/***********************************************************************
- Init the talloc context held by a REGSUBKEY_CTR structure
+ Add a new key to the array
**********************************************************************/
-void regsubkey_ctr_init( REGSUBKEY_CTR *ctr )
+WERROR regsubkey_ctr_addkey( REGSUBKEY_CTR *ctr, const char *keyname )
{
- if ( !ctr->ctx )
- ctr->ctx = talloc_init("regsubkey_ctr_init for ctr %p", ctr);
+ char **newkeys;
+
+ if ( !keyname ) {
+ return WERR_OK;
+ }
+
+ /* make sure the keyname is not already there */
+
+ if ( regsubkey_ctr_key_exists( ctr, keyname ) ) {
+ return WERR_OK;
+ }
+
+ if (!(newkeys = TALLOC_REALLOC_ARRAY(ctr, ctr->subkeys, char *,
+ ctr->num_subkeys+1))) {
+ return WERR_NOMEM;
+ }
+
+ ctr->subkeys = newkeys;
+
+ if (!(ctr->subkeys[ctr->num_subkeys] = talloc_strdup(ctr->subkeys,
+ keyname ))) {
+ /*
+ * Don't shrink the new array again, this wastes a pointer
+ */
+ return WERR_NOMEM;
+ }
+ ctr->num_subkeys++;
+
+ return WERR_OK;
+}
+
+ /***********************************************************************
+ Delete a key from the array
+ **********************************************************************/
+
+int regsubkey_ctr_delkey( REGSUBKEY_CTR *ctr, const char *keyname )
+{
+ int i;
+
+ if ( !keyname )
+ return ctr->num_subkeys;
+
+ /* make sure the keyname is actually already there */
+
+ for ( i=0; i<ctr->num_subkeys; i++ ) {
+ if ( strequal( ctr->subkeys[i], keyname ) )
+ break;
+ }
+
+ if ( i == ctr->num_subkeys )
+ return ctr->num_subkeys;
+
+ /* update if we have any keys left */
+ ctr->num_subkeys--;
+ if ( i < ctr->num_subkeys )
+ memmove( &ctr->subkeys[i], &ctr->subkeys[i+1], sizeof(char*) * (ctr->num_subkeys-i) );
+
+ return ctr->num_subkeys;
}
/***********************************************************************
- Add a new key to the array
+ Check for the existance of a key
**********************************************************************/
-int regsubkey_ctr_addkey( REGSUBKEY_CTR *ctr, const char *keyname )
+BOOL regsubkey_ctr_key_exists( REGSUBKEY_CTR *ctr, const char *keyname )
{
- uint32 len;
- char **pp;
+ int i;
- if ( keyname )
- {
- len = strlen( keyname );
-
- /* allocate a space for the char* in the array */
-
- if ( ctr->subkeys == 0 )
- ctr->subkeys = talloc( ctr->ctx, sizeof(char*) );
- else {
- pp = talloc_realloc( ctr->ctx, ctr->subkeys, sizeof(char*)*(ctr->num_subkeys+1) );
- if ( pp )
- ctr->subkeys = pp;
- }
+ if (!ctr->subkeys) {
+ return False;
+ }
- /* allocate the string and save it in the array */
-
- ctr->subkeys[ctr->num_subkeys] = talloc( ctr->ctx, len+1 );
- strncpy( ctr->subkeys[ctr->num_subkeys], keyname, len+1 );
- ctr->num_subkeys++;
+ for ( i=0; i<ctr->num_subkeys; i++ ) {
+ if ( strequal( ctr->subkeys[i],keyname ) )
+ return True;
}
- return ctr->num_subkeys;
+ return False;
}
-
+
/***********************************************************************
How many keys does the container hold ?
**********************************************************************/
return ctr->subkeys[key_index];
}
-/***********************************************************************
- free memory held by a REGSUBKEY_CTR structure
- **********************************************************************/
-
-void regsubkey_ctr_destroy( REGSUBKEY_CTR *ctr )
-{
- if ( ctr ) {
- talloc_destroy( ctr->ctx );
- ZERO_STRUCTP( ctr );
- }
-}
-
-
/*
* Utility functions for REGVAL_CTR
*/
-/***********************************************************************
- Init the talloc context held by a REGSUBKEY_CTR structure
- **********************************************************************/
-
-void regval_ctr_init( REGVAL_CTR *ctr )
-{
- if ( !ctr->ctx )
- ctr->ctx = talloc_init("regval_ctr_init for ctr %p", ctr);
-}
-
/***********************************************************************
How many keys does the container hold ?
**********************************************************************/
if ( !val )
return NULL;
- if ( !(copy = malloc( sizeof(REGISTRY_VALUE) )) ) {
+ if ( !(copy = SMB_MALLOC_P( REGISTRY_VALUE)) ) {
DEBUG(0,("dup_registry_value: malloc() failed!\n"));
return NULL;
}
/* copy all the non-pointer initial data */
memcpy( copy, val, sizeof(REGISTRY_VALUE) );
- if ( val->data_p )
+
+ copy->size = 0;
+ copy->data_p = NULL;
+
+ if ( val->data_p && val->size )
{
- if ( !(copy->data_p = memdup( val->data_p, val->size )) ) {
+ if ( !(copy->data_p = (uint8 *)memdup( val->data_p,
+ val->size )) ) {
DEBUG(0,("dup_registry_value: memdup() failed for [%d] bytes!\n",
val->size));
SAFE_FREE( copy );
+ return NULL;
}
+ copy->size = val->size;
}
return copy;
/**********************************************************************
*********************************************************************/
-int regval_size( REGISTRY_VALUE *val )
+uint32 regval_size( REGISTRY_VALUE *val )
{
return val->size;
}
/***********************************************************************
Retreive a pointer to a specific value. Caller shoud dup the structure
- since this memory may go away with a regval_ctr_destroy()
+ since this memory will go away when the ctr is free()'d
**********************************************************************/
REGISTRY_VALUE* regval_ctr_specific_value( REGVAL_CTR *ctr, uint32 idx )
}
/***********************************************************************
- Retrive the TALLOC_CTX associated with a REGISTRY_VALUE
+ Check for the existance of a value
**********************************************************************/
-TALLOC_CTX* regval_ctr_getctx( REGVAL_CTR *val )
+BOOL regval_ctr_key_exists( REGVAL_CTR *ctr, const char *value )
{
- if ( !val )
- return NULL;
-
- return val->ctx;
+ int i;
+
+ for ( i=0; i<ctr->num_values; i++ ) {
+ if ( strequal( ctr->values[i]->valuename, value) )
+ return True;
+ }
+
+ return False;
}
-
/***********************************************************************
Add a new registry value to the array
**********************************************************************/
int regval_ctr_addvalue( REGVAL_CTR *ctr, const char *name, uint16 type,
const char *data_p, size_t size )
{
- REGISTRY_VALUE **ppreg;
-
- if ( name )
- {
- /* allocate a slot in the array of pointers */
+ if ( !name )
+ return ctr->num_values;
+
+ /* Delete the current value (if it exists) and add the new one */
+
+ regval_ctr_delvalue( ctr, name );
+
+ /* allocate a slot in the array of pointers */
- if ( ctr->num_values == 0 )
- ctr->values = talloc( ctr->ctx, sizeof(REGISTRY_VALUE*) );
- else {
- ppreg = talloc_realloc( ctr->ctx, ctr->values, sizeof(REGISTRY_VALUE*)*(ctr->num_values+1) );
- if ( ppreg )
- ctr->values = ppreg;
- }
+ if ( ctr->num_values == 0 ) {
+ ctr->values = TALLOC_P( ctr, REGISTRY_VALUE *);
+ } else {
+ ctr->values = TALLOC_REALLOC_ARRAY( ctr, ctr->values, REGISTRY_VALUE *, ctr->num_values+1 );
+ }
- /* allocate a new value and store the pointer in the arrya */
+ if (!ctr->values) {
+ ctr->num_values = 0;
+ return 0;
+ }
+
+ /* allocate a new value and store the pointer in the arrya */
- ctr->values[ctr->num_values] = talloc( ctr->ctx, sizeof(REGISTRY_VALUE) );
+ ctr->values[ctr->num_values] = TALLOC_P( ctr, REGISTRY_VALUE);
+ if (!ctr->values[ctr->num_values]) {
+ ctr->num_values = 0;
+ return 0;
+ }
- /* init the value */
+ /* init the value */
- fstrcpy( ctr->values[ctr->num_values]->valuename, name );
- ctr->values[ctr->num_values]->type = type;
- ctr->values[ctr->num_values]->data_p = talloc_memdup( ctr->ctx, data_p, size );
- ctr->values[ctr->num_values]->size = size;
- ctr->num_values++;
+ fstrcpy( ctr->values[ctr->num_values]->valuename, name );
+ ctr->values[ctr->num_values]->type = type;
+ if (size) {
+ ctr->values[ctr->num_values]->data_p = (uint8 *)TALLOC_MEMDUP(
+ ctr, data_p, size );
+ if (!ctr->values[ctr->num_values]->data_p) {
+ ctr->num_values = 0;
+ return 0;
+ }
+ } else {
+ ctr->values[ctr->num_values]->data_p = NULL;
}
+ ctr->values[ctr->num_values]->size = size;
+ ctr->num_values++;
return ctr->num_values;
}
int regval_ctr_copyvalue( REGVAL_CTR *ctr, REGISTRY_VALUE *val )
{
- REGISTRY_VALUE **ppreg;
-
- if ( val )
- {
+ if ( val ) {
/* allocate a slot in the array of pointers */
- if ( ctr->num_values == 0 )
- ctr->values = talloc( ctr->ctx, sizeof(REGISTRY_VALUE*) );
- else {
- ppreg = talloc_realloc( ctr->ctx, ctr->values, sizeof(REGISTRY_VALUE*)*(ctr->num_values+1) );
- if ( ppreg )
- ctr->values = ppreg;
+ if ( ctr->num_values == 0 ) {
+ ctr->values = TALLOC_P( ctr, REGISTRY_VALUE *);
+ } else {
+ ctr->values = TALLOC_REALLOC_ARRAY( ctr, ctr->values, REGISTRY_VALUE *, ctr->num_values+1 );
+ }
+
+ if (!ctr->values) {
+ ctr->num_values = 0;
+ return 0;
}
/* allocate a new value and store the pointer in the arrya */
- ctr->values[ctr->num_values] = talloc( ctr->ctx, sizeof(REGISTRY_VALUE) );
+ ctr->values[ctr->num_values] = TALLOC_P( ctr, REGISTRY_VALUE);
+ if (!ctr->values[ctr->num_values]) {
+ ctr->num_values = 0;
+ return 0;
+ }
/* init the value */
fstrcpy( ctr->values[ctr->num_values]->valuename, val->valuename );
ctr->values[ctr->num_values]->type = val->type;
- ctr->values[ctr->num_values]->data_p = talloc_memdup( ctr->ctx, val->data_p, val->size );
+ if (val->size) {
+ ctr->values[ctr->num_values]->data_p = (uint8 *)TALLOC_MEMDUP(
+ ctr, val->data_p, val->size );
+ if (!ctr->values[ctr->num_values]->data_p) {
+ ctr->num_values = 0;
+ return 0;
+ }
+ } else {
+ ctr->values[ctr->num_values]->data_p = NULL;
+ }
ctr->values[ctr->num_values]->size = val->size;
ctr->num_values++;
}
{
int i;
- /* search for the value */
- if (!(ctr->num_values))
- return 0;
-
for ( i=0; i<ctr->num_values; i++ ) {
- if ( strcmp( ctr->values[i]->valuename, name ) == 0)
+ if ( strequal( ctr->values[i]->valuename, name ) )
break;
}
if ( i == ctr->num_values )
return ctr->num_values;
- /* just shift everything down one */
-
- for ( /* use previous i */; i<(ctr->num_values-1); i++ )
- memcpy( ctr->values[i], ctr->values[i+1], sizeof(REGISTRY_VALUE) );
-
- /* paranoia */
-
- ZERO_STRUCTP( ctr->values[i] );
-
+ /* If 'i' was not the last element, just shift everything down one */
ctr->num_values--;
+ if ( i < ctr->num_values )
+ memmove( &ctr->values[i], &ctr->values[i+1], sizeof(REGISTRY_VALUE*)*(ctr->num_values-i) );
return ctr->num_values;
}
/***********************************************************************
- Delete a single value from the registry container.
+ Retrieve single value from the registry container.
No need to free memory since it is talloc'd.
**********************************************************************/
}
/***********************************************************************
- free memory held by a REGVAL_CTR structure
+ return the data_p as a uint32
**********************************************************************/
-void regval_ctr_destroy( REGVAL_CTR *ctr )
+uint32 regval_dword( REGISTRY_VALUE *val )
{
- if ( ctr ) {
- talloc_destroy( ctr->ctx );
- ZERO_STRUCTP( ctr );
- }
+ uint32 data;
+
+ data = IVAL( regval_data_p(val), 0 );
+
+ return data;
}
+/***********************************************************************
+ return the data_p as a character string
+ **********************************************************************/
+
+char* regval_sz( REGISTRY_VALUE *val )
+{
+ static pstring data;
+ rpcstr_pull( data, regval_data_p(val), sizeof(data), regval_size(val), 0 );
+
+ return data;
+}
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff